Abstract
The addition of Cu on the structural, optical, and magnetic properties of MgFe2O4 prepared by a ceramic technique has been investigated. The Me-O and Me-Me bond lengths increase with the addition of Cu. IR spectra show bands at 540 and 460 cm−1, which confirm Fe3+ ions in both tetrahedral and octahedral sites. Room temperature Mössbauer spectra of MgFe2O4 compounds in zero applied magnetic field show the general trend of increasing hyperfine value and A-B exchange interaction caused by Mg2+ ion with Fe3+ ions. The addition of copper increases the isomer shift and quadruple splitting of the doublet.
Acknowledgments
The authors are thankful to the Director, CECRI, and staff of the EPM Division for their support. The authors are grateful to Prof. Ajith Gupta, and Mr. Amit Saraiya of Inter-University Consortium, Indore, for carrying out the Mössbauer measurements.